Oil-filter for



Patented Oct. 2

E. E. WELLS.

OIL FILTER FOR GAS ENGINES.

MPUCA'HON HLED JULY 3!, I920.

UNITED STATES PATENT OFFICE.

ELMER E. WELLS, OF STOCKTON, CALIFORNIA.

OIL-FILTER FOR GAS-ENGINES.

Application filed July 31,

1o (1/! Ma awi: if may concern.

lie it known that l, Emma E. \YnLLs. a citizen of the l nited States,residing at Stockton. in the county of San Joaquin, State of('aliforuia. have invented certain new and useful improvements inOil-Filters for has l'lugines: and 1 do declare the fol lowing to be afull, clear, and exact description of the same, reference being had tothe accompanying drawings. and to the characters of reference markedthereon, which form a part of this application.

This invention relates to improvements in devices adapted to heinstalled in connec tion with the lubricating system of a motor vehiclewhereby the particles of foreign matter in the oil will be antomatiallyremoved tbelcfronn and the clean oil again allowed to lubricate themechanism. The form of the device here shown and describe! isparticularly intended for use on Ford power plants, being especiallyadapted for such, In this type of power plant. the lula'icating in themam is a splash system, the oil, in the vicinity of the fly wheel andtransmission, being whirled around by the former so that the flying oilwill lubricate all parts within reach.

This is true. but at the same time. all the particles o grit etc. suchas geai ehips, carbon and the like the formation of which can hardly beprevented. are also carried around with the oil and deposited on thehearings and ylindor walls. causing rapid wear and deterioration.

The principal object of my invention therefore is to provide a device.which will catch at least part of the oil thrown up by the fly wheel.and will retain the solid partii'ies in the oil. allowing the clean oil.to again enter the crank case.

Another object is to provide a one-piece structure for the purpose.adapted to be placed in the transm sion box and held in plac by the overeof being instantly ."tl lliifil ii a; taking oli said cover. and uerflitiiinuj no rhaugcs of any character lw llfl ole t the power plant,.Jfilrl' obje t f the invention is to produte a simple and inexpensivedeviee. and yet on." which will be exceedingly effei-tivifor the purpses for which it is designed.

lhcst ohicts l ltCi'lllljlllSli by means of such @Ultctiilt and relativearrangement of Specification of Letters Patent.

Patented Oct. 25. 1921.

1920. Serial No. 400,558.

parts as will fully appear by a perusal of the following specificationand claims.

In the drawings similar characters of reference indicate correspondingparts in the several views.

Figure l is a perspective outline of a Ford transmission and adjacentparts, show ing my improved filter installed therein.

Fig. 2 is a longitudinal section of the device. detached.

Referring now more particularly to the characters of reference on thedrawings, the numeral 1 denotes a continuous flange, of the shape andsize of the flange 2 on the transmission box 3. This flange is providedwith orifices 4 registering with the holes pro vided in the cover forsaid box, so that when said 'cover is bolted down, the flange is firmlyheld in place.

Formed with the flange and depending into the box 2 at the rear endthereof, is a well 5 from the upper edge of one side of which a shallowand relatively narrow V- shaped trough 6 leads to the forward end of thetransmission box. The deepest point of this trough is directly below theinner edge of the side of the flange 1 toward which the upper face ofthe fly wheel moves.

This trough at its forward end of course has an opening 7 into the flywheel case below the transmission case flange 2, so as to catch acertain amount of oil thrown up by the fly wheel. This oil thenl'lows'to the well 5. since the entire device has a downward andrearward slant, such being the setting of the transmission-case flange.

The solid matter of course settles to the bottom of the well. while theclean oil re.- turns to the use throughi orifices 8 cut through thewalls of the well at a point just below the bottom level of the trough.and preferably being in the forward end of the well, and on the sideopposite the trough. so that when the well is ull. the oil flowing downthe trough cannot con tiuue to flow out directly through the holeswithout changing its course. thus giving the sediment a chance tosettle.

The w ll may be cleaned out whenever necessary by merely removing thetransmission casr cover. when the filter may be instantly removed as awhole.

By naeans of this device. not only are the cylinders and gears kept frombeing unduly worn by the abrasive effect of the carbon and grit, but thesomewhat small oil pipes of the lubricating system as provided on theengine are prevented from being sto ped up.

mm the foregoing description it will be readily seen that I haveproduced such a device as substantially fulfils the object of theinvention as set forth herein.

\Vhile this specification sets forth in detail the present and preferredconstruction of the device still in practice such deviations from suchdetail may be resorted to as do not form n departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful anddesire to secure by Letters Patent is 1. An oil filter forvehicle-motors comprising a unit vmember arranged to be removablyinserted into the transmission case under the cover thereof and heldthereby, and means in said member whereby the oil thrown up by the flywheel will be deposited therein and any solid particles in the oilcollected and held.

2. An oil filter for vehicle-motors comprising a removable wellpositioned in the transmission case at the rear end and held in positionby the cover thereof, and a shel low trough formed with the well andlead ing from the forward and upper end there of to the forward end ofthe trzlnsn-iission case, and on the side thereof toward whieh the upperface of the fly wheel of the engine rotates.

3. An oil fi ter for vehicle-motors comprising a removable well positionin the l to la \vcil depending from said flange at the rear end thereof.and a shallow trough extendiny: from the orwurd end of the well to theforward end of the transmission case, being positioned on that sidewhich will muse some of the oii thrown around by the fly whee! to heited in said trough, the well being? pro, .7 ,l with orifices in thesides below tho junrtlon of the trough therewith for the return oi theoil to the transmission case.

5. An oil tilt-"r for. "ehiclemotors comyrising 1! Well yes .ioned inthe transmission (use at the rear end thereof, and u shallow troughherding from the for 71rd and upper end o the well to the forward end ofthe trunsoniss on ues. and positioned to catch some of the oil thrownfrom the fly Wheel of thiengine with the rotation thereof. the well Mingviviod with orifices in the sides "of for the return of the oil to thecase. 'ia-iii es iii-Eng positioned out of the lllw of flow oi vii fromthe trough.

In tff=-hnmni i'z' -ifl'tfif l ufiix my signature.

illflillill E. WELLS.

